nal_hevc_read_vps(9)

📦 version 7.3.1, in nixpkgs unstable

💜 nal_hevc_read_vps — the nal_hevc_read_vps(9) glow-up

okay so bestie, we're in the kernel API manual and today's main character is nal_hevc_read_vps(9). yes, that's the actual page name, i'm not making it up 💅 this little icon lives in the kernel and it does exactly one thing, but it does it so well.

✨ SYNOPSIS ✨

ssize_t nal_hevc_read_vps (const struct device *dev , struct
nal_hevc_vps *vps , void *src , size_t n );

like, look at her. four args, one ssize_t return, no notes. 🎀

🦋 ARGUMENTS 🦋

  • dev — device pointer. your lil handle to the device, she's just there to say hi 🫶
  • vps — the struct nal_hevc_vps that gets filled from the RBSP data. it's giving empty cup, about to be hydrated 💧
  • src — the buffer holding the RBSP data. the source of truth, the vibe provider ✨
  • n — size of src, in bytes. like, don't lie about it, n is important 🧚

🌸 DESCRIPTION 🌸

so here's the whole plot: read RBSP data from src, and use it to fill vps. that's it. that's the function. no cap, it's literally that. the way that this is a whole manpage and the description is one sentence 😭 honestly? iconic. lowkey refreshing.

🔥 RETURN 🔥

  • non-negative → the number of bytes read from src. slay, it told you how much it ate 🍓
  • negative → an error code, i.e. something went wrong and she's telling you with a sad little minus sign 💀
fr fr, always check the return value. negative means error code, not "bytes read backwards". don't be that person 🙈

👑 SEE ALSO 👑

the whole friend group!! read and write for vps, sps, pps and filler — a full set, we love a complete collection 🌈

and that's the page!! mwah 💋 this lil cutie comes to you from ./drivers/media/platform/alleg... (yes the path really is abbreviated like that in the footer, i don't make the rules) and she's dated October 2026 — future girlie behavior honestly ⭐ stay hydrated, check your return codes, and go fill some VPS structs 🎀💜

— nal_hevc_read_vps(9), signing off 🫶

📦 where this page comes from